Linen tester



FIG. 1 is a top and right front perspective view of a linen tester showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof. 

The ornamental design of a linen tester, as shown. 